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Aircraft STC directory

Boeing R4D-8Z STCs

The Jun 30, 2026 FAA DRS snapshot contains 4 selected supplemental type certificates with status Current whose public applicability data names the Boeing R4D-8Z. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.

4
listed Current at snapshot
3
holder directories
2
modification categories
Jun 4, 2020
latest recorded revision

Modification demand surface

Other aircraft modifications3
Engine and powerplant1

Recorded holders

Airwolf Filter Corporation2Transnorthern LLC1Oilamatic Inc1

Recently revised R4D-8Z STCs

Showing the 4 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.